Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Sport Prediction) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Game 2 Winner | 100% |
| O/U 2.5 Games | 100% |
| Both Teams Slay Baron Nashor | 90% |
| Both Teams Slay a Dragon | 90% |
| Both Teams Slay a Dragon | 90% |
| Odd/Even Total Kills | 90% |
| Both Teams Slay Baron Nashor | 50% |
| Both Teams Slay a Dragon | 50% |
| Both Teams Destroy Inhibitors | 50% |
| Any Player Quadra Kill | 50% |
| Odd/Even Total Kills | 50% |
| Any Player Penta Kill | 25% |
| Both Teams Destroy Inhibitors | 10% |
| Any Player Quadra Kill | 10% |
| Any Player Penta Kill | 10% |
| Odd/Even Total Kills | 10% |
| Both Teams Slay Baron Nashor | 10% |
| Both Teams Destroy Inhibitors | 10% |
| Any Player Quadra Kill | 10% |
| Any Player Penta Kill | 10% |
| Game 1 Winner | 0% |
| Match Winner | 0% |
| Game Handicap: MKF (-1.5) vs UCAM Esports Club (+1.5) | 0% |
Market context
UCAM Esports Club face Movistar KOI Fénix in a best-of-three regular-season LoL match, and the market’s 0% YES price looks extreme against the recent head-to-head record. UCAM have won 13 of the 21 reported meetings between the sides, including a 3-2 series in June 2026, while KOI Fénix have also taken series this year, so this pairing has not been one-sided for long stretches.[8][11][13]
The more useful frame for pricing is recent form rather than long-run history. BO3.gg’s May 2026 preview described UCAM as inconsistent over their last five matches, but still showed a 57% win rate over the previous year and an 80% head-to-head edge across the last five meetings, while KOI Fénix were carrying stronger short-term momentum with a perfect recent month and a 73% half-year win rate.[1][3] That combination suggests the match has tended to be competitive, not a near-certainty for either side.[1][3]
For traders, the main catalysts are line-up confirmation, any last-minute roster changes, and whether the scheduled start time holds, as official match listings place the series on 5 August at 17:30 UTC.[4][5][8] The market also has a standard settlement backstop: if the match is not played, is tied, or is pushed more than seven days without a winner, it resolves 50-50 rather than to either team.[3]
Methodology
Sports-specific comparison page for LoL: UCAM Esports Club vs Movistar KOI Fénix (BO3) - LES Regular Season. Polymarket's live quote (Polygon order book) plus platform attributes for the three reference venues. Sports markets reward liquidity — Polymarket and Betfair are materially deeper than Kalshi or Manifold.
Resolution & payout
Sports markets typically settle on official final-whistle plus league confirmation. Polymarket uses UMA Optimistic Oracle with a source URL per contract — usually official league data feeds or ESPN/Soccerway. Two-hour dispute window, then smart-contract payout in USDC.
UK Frequently Asked Questions
- Are prediction markets better than sports betting?
- Prediction markets tend toward tighter odds than bookmakers because they use peer-to-peer exchange rather than bookmaker margin. On major matches, Polymarket quotes typically sit 2-5% closer to the true probability model than bet365 or DraftKings.
- What are live sports odds on Polymarket?
- Some top-tier matches stay open during play — you can trade the half-time probability in the 70th minute. Polymarket mid-prices update second-by-second; any frontend mirroring the order book shows the same movement.
- Is Polymarket legal in the UK?
- Polymarket is accessible to UK traders but is not UKGC-licensed. It operates under US CFTC jurisdiction. UK residents face no domestic legal prohibition on using it, but UKGC consumer protections do not apply. For UKGC-regulated alternatives, Betfair Exchange and Smarkets offer similar prediction-style markets.
- Do I pay tax on prediction market profits in the UK?
- UKGC-licensed platform profits (Betfair, Smarkets) are typically tax-free gambling winnings for UK individuals. Polymarket profits involve USDC crypto transactions, which HMRC treats as Capital Gains Tax events. Keep full transaction records and report via Self Assessment if gains exceed £3,000 per tax year.
- How do I deposit on Polymarket from the UK?
- UK traders typically fund Polymarket via Coinbase UK, Kraken or Revolut — buying USDC with GBP and transferring to a Polygon-compatible wallet (MetaMask, Coinbase Wallet). Polymarket's onboarding walks you through the bridging process. Typical GBP-to-USDC conversion costs 0.5–1%.
Trade LoL: UCAM Esports Club vs Movistar KOI Fénix (BO3) … on Sport Prediction
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